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【简答题】
当电路正常工作时,熔断器熔体允许长期通过____倍的额定电流而不熔断。当流过熔断器的电流____时,熔体熔断切断电路。
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【单选题】以经济建设为中心是()，是我们党、我们国家兴旺发达和长治久安的根本要求;四项基本原则是()，是我们党、我们国家生存发展的政治基石;改革开放是()，是我们党、我们国家发展进步的活力源泉。
A.
立国之本﹑兴国之要﹑强国之路
B.
兴国之要﹑强国之路﹑立国之本
C.
立国之本﹑强国之路﹑兴国之要
D.
兴国之要﹑立国之本﹑强国之路
【单选题】听力原文：W: Do you remember the due date for our final paper on Intercultural Communication? M: I think it's the last day of class. But Prof. Smith said not to wait until the last minute to hand it in. Q:...
A.
Prof. Smith suggested that all students attend the last class.
B.
Prof. Smith suggested that all students finish the assignment before the deadline.
C.
Prof. Smith suggested that' all students wait a few minutes after the last class.
D.
Prof. Smith suggested that all students watch the clock carefully on the last day of class.
【单选题】How could he get the plan _____ without any one to support him?
A.
to carry out
B.
carry out
C.
carrying out
D.
carried out
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